US20170232940A1 - Coolant measurement apparatus and method - Google Patents
Coolant measurement apparatus and method Download PDFInfo
- Publication number
- US20170232940A1 US20170232940A1 US15/045,242 US201615045242A US2017232940A1 US 20170232940 A1 US20170232940 A1 US 20170232940A1 US 201615045242 A US201615045242 A US 201615045242A US 2017232940 A1 US2017232940 A1 US 2017232940A1
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- US
- United States
- Prior art keywords
- coolant
- bottle
- vehicle
- actuator assembly
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000005259 measurement Methods 0.000 title abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000004378 air conditioning Methods 0.000 abstract description 6
- 239000003507 refrigerant Substances 0.000 description 19
- 238000009529 body temperature measurement Methods 0.000 description 17
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00585—Means for monitoring, testing or servicing the air-conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
Definitions
- the apparatus and method disclosed herein relates to a coolant measurement device for use in refilling or servicing a coolant system, such as an automobile coolant system.
- the coolant measurement device may be used with a bottle actuator assembly designed to operate in conjunction with a pressurized bottle, such as a refrigerant bottle. Additionally, the apparatus and system allows a non-professional to easily measure the temperature of the air conditioning vent air temperature while refilling to ensure that sufficient coolant has been filled.
- Typical coolant systems such as those found in an automobile air conditioner, include three main components—a compressor, a condenser, and an evaporator.
- a compressor is a pump driven by a belt attached to the engine's crankshaft. Refrigerant is drawn into the compressor in a low-pressure gaseous form. Once inside the compressor, a belt drives the pump pressurizing the gas which thereby gets hot by absorbing the surrounding heat.
- an air conditioning unit the ability of cooling provided using the compression and expansion of a gaseous refrigerant will vary depending on the level of refrigerant present in the system. For numerous reasons, refrigerant may slowly leak from the air conditioning system. As such, an automobile air conditioning system may require routine monitoring of the refrigerant level or pressure and periodic re-charging the refrigerant.
- automotive air conditioners are generally provided with a service port to permit the addition of refrigerant as well as to permit the inspection of the level of refrigerant in the system.
- a service port to permit the addition of refrigerant as well as to permit the inspection of the level of refrigerant in the system.
- One standard tool used by service professionals for re-charging refrigerant and measuring pressure or other parameters in automobile air conditioners is a set of manifold gauges.
- This tool typically includes three hoses and two gauges; wherein one hose connects to a low pressure service port; one hose connects to a high pressure service port; and a third hose connects to the source of refrigerant.
- the gauges are then used to measure the pressure at the service ports.
- manifold gauges may be a standard tool used by service professionals, a number of disadvantages may reduce their popularity among general consumers.
- Prior art systems disclose methods and devices for measuring the temperature of the coolant in the engine. However, for most non-professionals, this remains a difficult task. Additionally, measuring temperature of the coolant at the service port is not reliable for all vehicles. Accordingly, there is a need for replacing traditional measuring gauges which are difficult to use as the user must know the ambient temperature. Furthermore, there is also a need to replace gauges that measure the temperature and/or pressure at the port of refilling as different makes and models of vehicles may have different temperatures and/or pressures for a user to be aware of. Therefore, there is a need to measure the temperature at the vehicle air conditioning vents to ensure that the sufficient coolant has been filled in the coolant system.
- Embodiments of the present invention may be used that are adaptable to a bottle actuator assembly for use with various pressurized bottles.
- Embodiments of the present invention allow a consumer to determine the sufficiency of the refrigerant level in an automobile air conditioner, and to add refrigerant as needed. Additional advantages of embodiments of the invention are set forth, in part, in the description which follows and, in part, will be apparent to one of ordinary skill in the art from the description and/or from the practice of the invention.
- An apparatus and method for measuring the proper amount of coolant for refilling or servicing a coolant system such as an automobile coolant system, are disclosed.
- the invention provides a device for measuring the temperature of the air conditioner at a vent inside the vehicle to ensure the proper amount of coolant is refilled while the user is refilling or servicing a coolant system from outside the vehicle.
- a display is preferably disposed within a housing for operation with a bottle actuator assembly for a pressurized bottle. The display is in communication with a temperature sensor securely attached to an air conditioner vent inside the vehicle.
- the temperature sensor is connected to the display via an electrical wire.
- the display housing preferably includes a recessed portion for storage of the electrical wire.
- the display informs a user refilling or servicing the coolant system that the proper amount of coolant has been refilled by indicating that the air conditioner output inside the vehicle has reached the desired temperature.
- FIG. 1 is a perspective view of a coolant temperature measurement device in accordance with the invention.
- FIG. 2 is a perspective view of the individual components of the coolant temperature measurement device in accordance with the invention.
- FIG. 3 is a top perspective view of a coolant temperature measurement device in accordance with the invention
- FIG. 4 is a side perspective view of the coolant temperature measurement device in accordance with the invention.
- FIG. 5 is a perspective view of the coolant temperature measurement device with the measuring gauge detached.
- FIG. 6 is a perspective view of the coolant temperature measurement device in operation with a bottle actuator.
- FIG. 7 is a perspective of the coolant temperature measurement device in operation with a bottle actuator assembly device in accordance with the invention operating with a internal valve top bottle.
- the inventive coolant temperature measurement device 100 operable with a bottle assembly for use with pressurized coolant bottles and puncture top bottles preferably includes a number of easily manufactured and assembled components.
- the coolant temperature measurement device housing may be composed of two easily fabricated cup halves 1 , 2 .
- a digital display in operation with a digital temperature sensor is disclosed, however any temperature sensor may be substituted.
- the exemplary embodiment includes a display cap 9 , a display 10 , buttons 11 , printed circuit board (pcb) 12 , pcb retainer 13 , contact frame 3 , contact 5 , clamp 6 , and various screws, pins and springs 7 , 15 , 16 , 17 to fix the components in the cup halves 1 , 2 .
- the coolant temperature measurement device also includes a temperature sensor 4 in electrical communication via a wire 8 .
- the temperature sensor 4 is housed in a clip 14 for attachment to an air conditioner vent.
- a temperature sensor in accordance with the invention may also communicate with the coolant temperature measurement device by other means, including adapted to communicate wirelessly without departing from the spirt of the invention.
- the coolant temperature measurement device is preferably constructed from a number of easily replicable and interchangeable components.
- the exemplary coolant temperature measurement device 100 includes a display 10 .
- Display 10 is preferable a digital display for ease of reading by a user. However, as discussed above an analog display may be substituted as well.
- the housing halves 1 , 2 includes a holder 18 for storing the temperature sensor 4 and vent clip 14 .
- the temperature sensor 4 is in electrical communications with the coolant temperature measurement device 100 via wire 8 .
- the housing halves 1 , 2 preferably includes a recessed portion 19 which allows for storage of wire 8 by easily winding wire 8 around the recessed portion 19 of housing halves 1 , 2 .
- the recessed portion 19 is preferably located below the display cap 9 .
- wire 8 may be stored within the housing using a spring wound configuration.
- FIG. 6 depicts the exemplary coolant temperature measurement device in operation with a bottle actuator assembly.
- the housing preferably includes connector 20 for insertion into a bottle actuator assembly 200 having port for receiving connector 20 .
- connector 20 for insertion into a bottle actuator assembly 200 having port for receiving connector 20 .
- the coolant temperature measurement device it is not necessary for the coolant temperature measurement device to be physically adjoined to a bottle actuator assembly 200 .
- FIG. 7 further depicts the exemplary coolant temperature measurement device 100 in operation with a bottle actuator assembly 200 in receipt of a pressurized bottle 300 .
- the bottle actuator assembly 200 includes an actuation level when opening flow between the coolant system and the refrigerant bottle 300 . A thorough discussion of this process is incorporated by reference from U.S. patent application Ser. No. 14/680,066.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
An apparatus and method for measuring coolant temperature to ensure the proper amount of coolant for refilling or servicing a coolant system, such as an automobile coolant system, are disclosed. In one embodiment, the apparatus includes a measurement display for viewing the temperature of air conditioning output inside a vehicle while the user is outside the vehicle refilling or servicing a coolant system. The measurement display is in communications with a temperature sensor measuring the air temperature at a vent inside the vehicle to allow a user to ensure the proper amount of coolant is refilled.
Description
- The apparatus and method disclosed herein relates to a coolant measurement device for use in refilling or servicing a coolant system, such as an automobile coolant system. The coolant measurement device may be used with a bottle actuator assembly designed to operate in conjunction with a pressurized bottle, such as a refrigerant bottle. Additionally, the apparatus and system allows a non-professional to easily measure the temperature of the air conditioning vent air temperature while refilling to ensure that sufficient coolant has been filled.
- Typical coolant systems, such as those found in an automobile air conditioner, include three main components—a compressor, a condenser, and an evaporator. A compressor is a pump driven by a belt attached to the engine's crankshaft. Refrigerant is drawn into the compressor in a low-pressure gaseous form. Once inside the compressor, a belt drives the pump pressurizing the gas which thereby gets hot by absorbing the surrounding heat.
- Conversely, as the pressure of the gas decreases, the gas temperature decreases. This expansion of the refrigerant gas in a coolant system acts to cool the system containing the refrigerant. Air is then blown over the cooled system into the cabin of the automobile.
- In such an air conditioning unit, the ability of cooling provided using the compression and expansion of a gaseous refrigerant will vary depending on the level of refrigerant present in the system. For numerous reasons, refrigerant may slowly leak from the air conditioning system. As such, an automobile air conditioning system may require routine monitoring of the refrigerant level or pressure and periodic re-charging the refrigerant.
- To allow re-charging of the refrigerant, automotive air conditioners are generally provided with a service port to permit the addition of refrigerant as well as to permit the inspection of the level of refrigerant in the system. Although such re-charging and inspection is typically performed by service professionals, a significant number of automobile owners prefer to perform routine maintenance on their own vehicles, in part due to the savings obtained.
- One standard tool used by service professionals for re-charging refrigerant and measuring pressure or other parameters in automobile air conditioners is a set of manifold gauges. This tool typically includes three hoses and two gauges; wherein one hose connects to a low pressure service port; one hose connects to a high pressure service port; and a third hose connects to the source of refrigerant. The gauges are then used to measure the pressure at the service ports. Although manifold gauges may be a standard tool used by service professionals, a number of disadvantages may reduce their popularity among general consumers. These disadvantages include: being complicated to use; requiring the user to know the approximate ambient temperature; requiring a user to look up the pressure readings of the gauges on a chart to determine if there is sufficient refrigerant in the system; presenting a high up-front costs of equipment that is infrequently used. An innovative way for providing a re-charging of refrigerant and measuring the pressure of coolant systems using an adaptable bottle actuator assembly capable of interoperating with various forms of pressurized bottles is described in U.S. patent application Ser. No. 14/680,066, the specification of which is incorporated by reference.
- Prior art systems disclose methods and devices for measuring the temperature of the coolant in the engine. However, for most non-professionals, this remains a difficult task. Additionally, measuring temperature of the coolant at the service port is not reliable for all vehicles. Accordingly, there is a need for replacing traditional measuring gauges which are difficult to use as the user must know the ambient temperature. Furthermore, there is also a need to replace gauges that measure the temperature and/or pressure at the port of refilling as different makes and models of vehicles may have different temperatures and/or pressures for a user to be aware of. Therefore, there is a need to measure the temperature at the vehicle air conditioning vents to ensure that the sufficient coolant has been filled in the coolant system.
- Various apparatus and system embodiments of the present invention may be used that are adaptable to a bottle actuator assembly for use with various pressurized bottles. Embodiments of the present invention allow a consumer to determine the sufficiency of the refrigerant level in an automobile air conditioner, and to add refrigerant as needed. Additional advantages of embodiments of the invention are set forth, in part, in the description which follows and, in part, will be apparent to one of ordinary skill in the art from the description and/or from the practice of the invention.
- An apparatus and method for measuring the proper amount of coolant for refilling or servicing a coolant system, such as an automobile coolant system, are disclosed. The invention provides a device for measuring the temperature of the air conditioner at a vent inside the vehicle to ensure the proper amount of coolant is refilled while the user is refilling or servicing a coolant system from outside the vehicle. A display is preferably disposed within a housing for operation with a bottle actuator assembly for a pressurized bottle. The display is in communication with a temperature sensor securely attached to an air conditioner vent inside the vehicle.
- In another aspect, the temperature sensor is connected to the display via an electrical wire. The display housing preferably includes a recessed portion for storage of the electrical wire.
- In another aspect, the display informs a user refilling or servicing the coolant system that the proper amount of coolant has been refilled by indicating that the air conditioner output inside the vehicle has reached the desired temperature.
-
FIG. 1 is a perspective view of a coolant temperature measurement device in accordance with the invention. -
FIG. 2 is a perspective view of the individual components of the coolant temperature measurement device in accordance with the invention. -
FIG. 3 is a top perspective view of a coolant temperature measurement device in accordance with the invention -
FIG. 4 is a side perspective view of the coolant temperature measurement device in accordance with the invention. -
FIG. 5 is a perspective view of the coolant temperature measurement device with the measuring gauge detached. -
FIG. 6 is a perspective view of the coolant temperature measurement device in operation with a bottle actuator. -
FIG. 7 is a perspective of the coolant temperature measurement device in operation with a bottle actuator assembly device in accordance with the invention operating with a internal valve top bottle. - While the inventions disclosed herein are susceptible to various modifications and alternative forms, specific embodiments are shown by way of examples in the drawings and described in detail. It should be understood that the figures and detailed description discussed herein are not intended to limit the invention to the particular forms disclosed. On the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present inventions as defined by the appended claims. Description will now be given of the invention with reference to
FIGS. 1-7 . - As shown generally in
FIGS. 1 and 2 , the inventive coolanttemperature measurement device 100 operable with a bottle assembly for use with pressurized coolant bottles and puncture top bottles preferably includes a number of easily manufactured and assembled components. In an exemplary embodiment, the coolant temperature measurement device housing may be composed of two easily fabricatedcup halves 1, 2. In the exemplary embodiment, a digital display in operation with a digital temperature sensor is disclosed, however any temperature sensor may be substituted. The exemplary embodiment includes adisplay cap 9, adisplay 10,buttons 11, printed circuit board (pcb) 12,pcb retainer 13, contact frame 3, contact 5,clamp 6, and various screws, pins andsprings cup halves 1, 2. - In the exemplary embodiment, the coolant temperature measurement device also includes a
temperature sensor 4 in electrical communication via awire 8. Thetemperature sensor 4 is housed in aclip 14 for attachment to an air conditioner vent. A temperature sensor in accordance with the invention may also communicate with the coolant temperature measurement device by other means, including adapted to communicate wirelessly without departing from the spirt of the invention. - As shown in
FIG. 2 , the coolant temperature measurement device is preferably constructed from a number of easily replicable and interchangeable components. - As show in the top view of
FIG. 3 , the exemplary coolanttemperature measurement device 100 includes adisplay 10.Display 10 is preferable a digital display for ease of reading by a user. However, as discussed above an analog display may be substituted as well. Thehousing halves 1, 2 includes aholder 18 for storing thetemperature sensor 4 andvent clip 14. - As shown in
FIGS. 4 and 5 , in the exemplary embodiment thetemperature sensor 4 is in electrical communications with the coolanttemperature measurement device 100 viawire 8. Thehousing halves 1, 2 preferably includes a recessedportion 19 which allows for storage ofwire 8 by easily windingwire 8 around the recessedportion 19 ofhousing halves 1, 2. The recessedportion 19 is preferably located below thedisplay cap 9. In an alternate embodiment,wire 8 may be stored within the housing using a spring wound configuration. -
FIG. 6 depicts the exemplary coolant temperature measurement device in operation with a bottle actuator assembly. The housing preferably includesconnector 20 for insertion into abottle actuator assembly 200 having port for receivingconnector 20. Although preferably attached to abottle actuator assembly 200, it is not necessary for the coolant temperature measurement device to be physically adjoined to abottle actuator assembly 200. -
FIG. 7 further depicts the exemplary coolanttemperature measurement device 100 in operation with abottle actuator assembly 200 in receipt of apressurized bottle 300. Thebottle actuator assembly 200 includes an actuation level when opening flow between the coolant system and therefrigerant bottle 300. A thorough discussion of this process is incorporated by reference from U.S. patent application Ser. No. 14/680,066. - These and other modifications to the above-described embodiments of the invention may be made without departing from the intended scope of the invention.
Claims (9)
1. An apparatus for servicing a vehicle coolant system, the apparatus comprising:
a display for viewing temperature of the vehicle air conditioner output;
a housing; and
a temperature sensor in communication with a gauge for measuring the temperature of air output from a vent within a vehicle.
2. The apparatus of claim 1 , wherein the display is disposed within the housing.
3. The apparatus of claim 2 , further comprising:
a wire in electrical communication with the temperature sensor.
4. The apparatus of claim 4 , wherein the wire is wound around a recessed portion on the exterior of the housing.
5. The apparatus of claim 1 wherein the housing is adaptable for use with a bottle actuator assembly.
6. The apparatus of claim 1 , wherein the temperature sensor further comprises a clip for securely attaching to an air conditioner vent.
7. A method for servicing a vehicle coolant system, comprising the steps of:
filling coolant at a coolant port of a vehicle using a bottle actuator assembly having a gauge for measuring vent temperature of the coolant system; and
measuring temperature of air output from a vent within a vehicle with a temperature sensor to determine the correct amount of coolant filled.
8. A system for servicing a coolant system, the system comprising:
a pressurized bottle having a puncture top or an internal valve;
a bottle actuator assembly in flow communication with the pressurized bottle, the bottle actuator assembly comprising:
a housing;
a splitter disposed within the housing having at least two ports;
a piercing tube disposed within the splitter, adapted to pierce a puncture top bottle and actuate an internal valve;
a gasket for controlling flow communication to the bottle containing pressurized contents;
an actuation lever for maneuvering an actuator pin; and
means for providing flow communications between the bottle actuator assembly and a service port of the coolant system.
9. The system of claim 9 further comprising, a gauge affixed to the bottle actuator assembly operating to measure a parameter of the coolant system.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US15/045,242 US9981637B2 (en) | 2016-02-16 | 2016-02-16 | Coolant measurement apparatus and method |
US15/948,723 US10850591B2 (en) | 2016-02-16 | 2018-04-09 | Apparatus and system for air conditioning output measurement and coolant servicing |
US16/949,020 US20210129622A1 (en) | 2016-02-16 | 2020-10-09 | Apparatus and system for air conditioning output measurement and coolant servicing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US15/045,242 US9981637B2 (en) | 2016-02-16 | 2016-02-16 | Coolant measurement apparatus and method |
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US15/948,723 Continuation-In-Part US10850591B2 (en) | 2016-02-16 | 2018-04-09 | Apparatus and system for air conditioning output measurement and coolant servicing |
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US20170232940A1 true US20170232940A1 (en) | 2017-08-17 |
US9981637B2 US9981637B2 (en) | 2018-05-29 |
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US15/045,242 Active 2036-04-16 US9981637B2 (en) | 2016-02-16 | 2016-02-16 | Coolant measurement apparatus and method |
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Cited By (5)
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US20180010832A1 (en) * | 2016-07-08 | 2018-01-11 | Digi Charging Technology, LLC | Digital monitoring and measuring air conditioner recharging system |
WO2019199900A1 (en) * | 2018-04-09 | 2019-10-17 | Pacific Link, L.L.C. | Apparatus and system for air conditioning output measurement and coolant servicing |
US10850591B2 (en) | 2016-02-16 | 2020-12-01 | Pacific Link, L.L.C. | Apparatus and system for air conditioning output measurement and coolant servicing |
US11300457B2 (en) * | 2019-06-28 | 2022-04-12 | Weber-Stephen Products Llc | Temperature probe hubs |
USD991806S1 (en) | 2019-06-28 | 2023-07-11 | Weber-Stephen Products Llc | Temperature probe hub |
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US10850591B2 (en) | 2016-02-16 | 2020-12-01 | Pacific Link, L.L.C. | Apparatus and system for air conditioning output measurement and coolant servicing |
US20180010832A1 (en) * | 2016-07-08 | 2018-01-11 | Digi Charging Technology, LLC | Digital monitoring and measuring air conditioner recharging system |
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USD991806S1 (en) | 2019-06-28 | 2023-07-11 | Weber-Stephen Products Llc | Temperature probe hub |
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